'Year of' in the Bible

In the eighth month, in the second year of Darius, hath a word of Jehovah been unto Zechariah, son of Berechiah, son of Iddo, the prophet, saying:

On the twenty and fourth day of the eleventh month, (it is the month of Sebat,) in the second year of Darius, hath a word of Jehovah been unto Zechariah, son of Berechiah, son of Iddo, the prophet, saying:

{And then}, in the fourth year of King Darius, the word of Yahweh came to Zechariah on [the] fourth [day] of the ninth month, [which is] Kislev.